CN202709835U - High-efficiency phase change heat storage device - Google Patents
High-efficiency phase change heat storage device Download PDFInfo
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- CN202709835U CN202709835U CN2012203572259U CN201220357225U CN202709835U CN 202709835 U CN202709835 U CN 202709835U CN 2012203572259 U CN2012203572259 U CN 2012203572259U CN 201220357225 U CN201220357225 U CN 201220357225U CN 202709835 U CN202709835 U CN 202709835U
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- heat
- phase change
- heat storage
- change material
- storage device
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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Abstract
The utility model discloses a high-efficiency phase change heat storage device, belonging to the field of phase change heat storage. The high-efficiency phase change heat storage device comprises an heat insulation shell, heat exchangers, a phase change material, an inlet, an outlet and flange plates, wherein the heat exchangers are made of finned pipes and are spiral, the heat exchangers are nested layer by layer according to the spring diameter size, inlets of the finned pipes are communicated with the inlet through the flange plates, outlets of the finned pipes are communicated with the outlet through the flange plates, the phase change material is uniformly distributed around the heat exchangers, and the phase change material is prepared from a sodium sulfate hydrated salt, namely a byproduct in the chemical process, as well as a phase separation restricting agent and an anti-overcooling agent. The high-efficiency phase change heat storage device disclosed by the utility model has the advantages of simple structure, large heat exchange area, good heat transfer effect, easy manufacturing, short heat storage and heat emission time and the like.
Description
Technical field
The utility model belongs to the phase-transition heat-storage field, particularly a kind of efficient phase transition heat accumulation unit.
Background technology
Energy problem is one of serious problems of world and China economic development faces, and the in short supply and waste of conventional energy resource directly has influence on the sustainable development of following human society.
Along with improving constantly of scientific and technological progress and living standards of the people, the demand of the energy is increased day by day, the attention of increasing country is received in energy-conservation and environmental protection.Heat storage technology can solve the contradiction between the heat energy supply and demand mismatch, is important technology and the important channel of improving energy utilization rate.At present the main heat accumulation method that uses is the steam accumulation of heat, the hot water accumulation of heat, phase-transition heat-storage since the advantage such as its material category is many, and the density of accumulation of heat is high, and development space is large begin to be widely used., the main helical bundle that uses of China or U-shaped tube bank mostly are the alternately generation effects of single tube and phase-change material now, its heat exchange area is little, because the size of phase-transition heat-storage ability is relevant with the heat exchange area of heat exchanger, so these device heat exchange efficiencies are quite low.The spiral winding tube bank that existing utility model patent 201020669227.2 is announced, although heat exchange area increased than in the past, heat exchange efficiency still is subject to certain restrictions, and very easily burns as the paraffin of phase-change material, has certain potential safety hazard.
Summary of the invention
The utility model aims to provide a kind of phase transition heat accumulation unit enough simple, that heat exchange area is large, heat exchange efficiency is high of tying.
Realize by following scheme:
A kind of efficient phase transition heat accumulation unit, comprise import, outlet, ring flange, insulation shell and heat exchanger 6, phase-change material, described heat exchanger is made with finned tube, in the shape of a spiral, be positioned at the insulation shell inner chamber, even distribution phase-change material around it, the import of finned tube communicates with import by ring flange, and the outlet of finned tube communicates with outlet by ring flange.
Described heat exchanger is nested layer by layer according to the size in spring footpath.
Described phase-change material is the sodium sulphate hydrated salt, and the inside is added with anti-phase separation agent and prevented cryogen.
Described insulation shell outer wall coats the one layer of heat preservation material, and this insulation material can be a vacuum structure but be not limited to this structure.
Beneficial effect:
The utility model is simple in structure, because heat exchanger adopts the spiral nested structure, greatly improved heat exchange area, prolonged the time of fluid in heat exchanger, heat exchange efficiency is high, and insulation shell is made of high insulating effect inwall, heat-insulation layer and outer wall, whole device is easy to make, and the accumulation of heat heat release time is short.
(4) description of drawings
The nested phase change heat accumulator installation drawing of Fig. 1 spiral
Fig. 2 heat exchanger
The cross section of Fig. 3 insulation shell
1 import, 2 flanged plates, 3 phase-change materials, 4 insulation shells, 5 outlets, 6 heat exchangers, the 4-1 outer wall,
4-2 heat-insulation layer, 4-3 inwall, the import of 6-1 heat exchanger, 6-2 heat exchanger exit.
(5) specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and the specific embodiment:
A kind of spiral nested type phase change heat accumulator comprises insulation shell 4, heat exchanger 6, phase-change material 3, import 1, outlet 5, flanged plate 2, and described heat exchanger 6 usefulness finned tubes are made, and in the shape of a spiral, are positioned at the insulation shell inner chamber, even distribution phase-change material 3 around it.
The import 6-1 of described finned tube communicates with import 1 by ring flange 2, and the outlet 6-2 of finned tube communicates with outlet 5 by ring flange 2.
Described heat exchanger 6 is nested layer by layer according to the size in spring footpath, when nested, makes adjacent heat exchanger be spaced apart the finned tube diameter of twice for best.
During the utility model work, utilize hot water or the steam of solar energy or other energy sources for heatings to enter heat exchanger 6 by import 1 and flanged plate 2, advance at heat exchanger 6 pipe inside spins, the transmission distance is large, because finned tube has the effect of accelerating heat transfer, phase-change material 3 absorbs heat, and reaches very soon transformation temperature again, become liquid by solid, namely extraneous heat energy the form of latent heat be stored in the phase-change material.After phase-change material becomes liquid, can continue heat absorption.Be insulation shell 4 around the phase-change material, insulation shell 4 outsides coat insulation material, can keep for a long time heat not scatter and disappear.When the external world needed heat, extraneous cold water entered heat exchanger by water inlet, because finned tube has the effect of accelerating heat transfer, phase-change material also solidifies very soon, and heat is passed to water, and water temperature is raise.Whole device is nontoxic, and non-corrosiveness is safe and reliable, it has very high accumulation of heat and exothermal efficiency.
Claims (3)
1. efficient phase transition heat accumulation unit, it comprises import (1), outlet (5), ring flange (2), insulation shell (4), heat exchanger (6), phase-change material (3), it is characterized in that: described heat exchanger (6) is made with finned tube, in the shape of a spiral, be positioned at the insulation shell inner chamber, even distribution phase-change material (3) around it.
2. a kind of efficient phase transition heat accumulation unit as claimed in claim 1, it is characterized in that: the import of described finned tube (6-1) communicates with import (1) by ring flange (2), and the outlet of finned tube (6-2) communicates with outlet (5) by ring flange (2).
3. a kind of efficient phase transition heat accumulation unit as claimed in claim 1, it is characterized in that: described heat exchanger (6) is nested layer by layer according to the size in spring footpath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203572259U CN202709835U (en) | 2012-07-23 | 2012-07-23 | High-efficiency phase change heat storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203572259U CN202709835U (en) | 2012-07-23 | 2012-07-23 | High-efficiency phase change heat storage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202709835U true CN202709835U (en) | 2013-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203572259U Expired - Fee Related CN202709835U (en) | 2012-07-23 | 2012-07-23 | High-efficiency phase change heat storage device |
Country Status (1)
| Country | Link |
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| CN (1) | CN202709835U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105066082A (en) * | 2015-08-04 | 2015-11-18 | 广东石油化工学院 | Solar heat storage steam generator |
| CN113776207A (en) * | 2021-06-11 | 2021-12-10 | 南京理工大学 | Shell-and-tube phase-change heat storage device with conical spiral coil pipe structure |
-
2012
- 2012-07-23 CN CN2012203572259U patent/CN202709835U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105066082A (en) * | 2015-08-04 | 2015-11-18 | 广东石油化工学院 | Solar heat storage steam generator |
| CN105066082B (en) * | 2015-08-04 | 2017-08-25 | 广东石油化工学院 | A kind of solar energy heat-storage steam generator |
| CN113776207A (en) * | 2021-06-11 | 2021-12-10 | 南京理工大学 | Shell-and-tube phase-change heat storage device with conical spiral coil pipe structure |
| CN113776207B (en) * | 2021-06-11 | 2022-11-04 | 南京理工大学 | Shell-and-tube phase-change heat storage device with conical spiral coil pipe structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20150723 |
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| EXPY | Termination of patent right or utility model |